Tire-valve.



W. A. GOETZE & W. A. DAY.

TIRE VALVE. I APPLIOATION FILED AU G.26, 1911.

1,093,397o Patented Apr. 14, 1914.

' u ZNVENTORE WITNESSES %W777 ce/ 609526 A @wy yes upper end of the rod 19 is slidable ll l WILLIAM A. GOEIZE AND WALTER A.

11' l TIT m i TIRE-VALVE.

oessev.

. Specification of Letters Patent. Application filed August 26, 1911.

Patented Apr. 141, i914. Serial No. 646,225.

To all whom it may concern: Be it known that we, WILLIAM A. Gon'rzn and l/VALTER- A. DAY, citizens of the United States, residing at VVeaverville, in the county of Trinity and State of California, have invented certain new and useful Improvements in Tire-Valves, of which the following is a specification.

his invention relates to improvements in tire valves, the leading object in view is to provide a supplemental tire valve adapted to be, mounted on the usual tire valve and adapted to indicate the pressure of air in the tire.

With the above and other objects in view the invention relates to certain improvements, combination, parts clearly illustrated in the accompanying drawing and described in the following specification.

1n the accompanying drawings; Figure 1 is a side elevation showing a supplemental valve mounted on the usual tire valve; Fig. 2 is a vertical sectional view thereof; Fig. 3 is a vertical sectional view showing the valve operating rod raised to an inoperative position.

Referring to the accompanying drawing 5 denotes an outer tube of the tire and 6 the inner tube thereof. The usual valve casing 7 is secured to the tubes 5 and 6 and said casingcarries in its upper end a valve seat'8, a valve rod 9 is disposed within the casing and carries on its upper end a valve 10 which is adapted to close communication between the atmosphere and inner tube. The usual spring 11 is mounted on the rod 9 and serves to hold the valve 10 against the seat 8. A spider 12 serves as a guide for the rod 9 and a stop for the spring 11.

The casing 7 is formed with external screw threads and a disk 13 is threaded on said casing and a lock nut 14 is threaded on said casing against said disk 13. A tube 15 is mounted on the disk 13 and is threaded into the tube 16 which carries a plug 17 havingits lower end recessed and screw threaded. to the upper end of the casing 7. guide 18, in the form of a spider is fitted 1n the recess of the plug 17 directly over the rod 9, which projects normally above the valve seat 8. A plunger through an opening formed in the plug 17 stops 19' s aced on either slde of faces of said plug 1 The upper end of the rod 19 and arrangement of i and is provided with extends through the end walls .16 of the casing 16 and through a cap 20 mounted on said casing and is provided with a terminal head 21 adapted to be manipulated by a thumb. A small casing 22 is secured-to the inner side of the end wall 16' and a spring 22 is disposed in said casing 22 and is adapted to hold the lower end of'the rod 19 spaced from the upper end of the rod 9 the upper end of spring 22 is securely attached to rod 19 by any suitable means .in such a manner that when the terminal hood 21 is pressed downwardly, the said spring 22 will be actuated.

The plug 17 is formed with a transverse air passage 17 which communicates with the recess in the lower small passagel7 communicating wlth said passage 17. A glass tube 23 having graduations 23 is. disposed in a space 2 1 formed in said plug and said tube 23 is formed with an opened lower end communicating with the passage 17". lVithin the tube 23 an indicating disk 25 is disposed, against said indicating disk a spring 25' exerts pressure and normally holds said element in a closing position .over the passage 17". By pressing the valve operating rod 19 inwardly the valve 10 will be forced from its seat so easing into the passage 17 and thence through the passage 17 into the tube 23 forcing the disk into the tube 23 and thereby indicating the air pressure in the inner tube. The plug 17 has secured theretoa tap 26 and a cap 27 is fitted on the tap by a screw threaded connection. By removing the cap 27 air compressed in the passage 17 may be permitted to escape so as to restore the disk 25 to its normal position.

Having described our invention, we claim;

end of said plug and a that air may flow through the 1. In combination with a tire valve having a casing and an air valve said casing, a casing mounted over said first casing, a plug disposed in said casing and provided with a passage adapted to communicate with the first casing, a rod movable in said second casing and adapted to unseat the valve, an indicating tube disposed in said second casing and communicating with said passage, a disk movable in said indicating tube, and a spring disposed in said indicating tube and adapted to hold said disk in its outermost position therein.

working in 2. In combination, a tire valve having a casing and an air valve working in said casing and provided with a stem projecting above said casing, a casing mounted over said first casing, a plug having passages therein disposed in said casing, an indicating tube disposed in having communication 'with said passages, -a disk movable in said tube and adapted to control said communication, a spring in said 'tube adapted to hold said disk in a closing position, a spring controlled rod movable in said casing across the plug and adapted to engage the upper end ofthe valve stem and unseat said valve, .stops on said rod adapted to limit the movement thereof, and a tap communicating with one of said passages.

valve projecting from said tube-,a casing said second casing andreniovably engaging said first casing, a push-rod carried by said casing disposed in alinement with said first-named spring, a spring in said casing engaging said pushrod adapted to engage said first-named rod to move said valve against the tension of said first-named spring, a tube mounted in said casing, a member supporting said tube and having an opening, a disk-in said tube covering said opening, a spring in said tube bearing against said disk, said member formed with a channel communicating with the tubes and with said opening, and a cap controlled outlet pipe mounted on said cas- 1n 7 I in testimony whereof we affix our signatures in presence oftwo witnesses. v

WILLIAMA. GOETZE. WALTER A. DAY. WVitnesses:

J. F. TOURTELLO'ITE, H. R. GIvEN. 

